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If 'n' is an integer then show that (1+cosθ+isinθ)ⁿ+(1+cosθ-isinθ)ⁿ=2ⁿ⁺¹cosⁿ(θ/2)cos(nθ/2) Demoivre
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#intermediate #inter #inter2ndyear #intermediateexam #intermediatemaths #demoivre #demoivrestheorem #demoivrestheorems #inter2ndyear2024
#intermediate #inter #inter2ndyear #intermediateexam #intermediatemaths #demoivre #demoivrestheorem #demoivrestheorems #inter2ndyear2024
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